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The output of your command "w" is:

 03:20:54 up 21 days, 10:31,  2 users,  load average: 0.96, 0.62, 0.28
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU  WHAT
wahid    tty2     -                13Mar25 21days  0.22s  0.12s /usr/libexec/gnome-session-binary --session=ubuntu